Plastic water bottles are a classic example of a single-use plastic. These kinds of plastics are non-biodegradable, meaning ...

"It's better that the mountain stays clean." Hiker comes across frustrating scene at top of mountain peak on popular trail: ...

Those creatures will be grateful, though, as a lot of the garbage is made of nondegradable materials such as plastic. These ...

A research project on Colorado’s highest peak this summer reveals that hikers will pack their poop out, provided they’re ...